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HomeMy WebLinkAboutOrdinance 80.02 Flood plain ordinanceORDINANCE NO, 80.02 Be it ordained by the Governing Body of the Town of Marana Section i - The Town Council hereby has these added responsibilities and is authorized and directed to enforce all the provisions of this Flood Plain Ordinance and all other Ordinances of the Town of Marana now in force or hereafter adopted, relating to zoning, sub-division or building codes. Section 2 - The Town Clerk shall be appointed to these additional respon- sibilities by resolution of the Town Council and his/her appointment shall continue during good behavior and satisfactory service. During temporary absences or disability of the Mayor the Governing Body of the Town shall designate an acting Administrator. Section 3 - The Town Council of the Town of Marana hereby designates Flood Hazard Boundary Map (s) No. 040118 dated May 15, 1979, and amendments, as the official maps to be used in determining those areas of special flood hazard. Section 4 - Permits Required: No person, firm, or corporation shall erect, construct, enlarge, or substantially improve any building or structure, as defined in this ordinance, within the areas of special flood hazard of the Town as designated by the official Flood Hazard Boundary Map, or cause the same to be done without first obtaining a separate development permit for each such building or structure. a. Within Zone (s) A on the official map, separate development permits are required for all new construction, substantial improvements and other developments, including the placement of mobile homes. b. Application: To obtain a permit, the applicant shall first file an application therefor in writing on a form furnished for that purpose. Every such application shall: 1. Identify and describe the work to be covered by the permit for which application is made. Describe the land on which the proposed work is to be done by lot, block, tract and house and street address, or similar description that will readily identify and definitely locate the proposed building or work. 3. Indicate the use or occupancy for which the proposed work is intended. 4. Be accompanied by plans and specifications for proposed construction. 5. Be signed by the permittee or his authorized agent who may be required to submit evidence to indicate such authority. Within designated flood prone areas, be accompanied by elevations (in relation to mean sea level) of the lowest habitable floor (including basement) or in the case of floodproofed non-residential structures, the elevation to which it has been floodproofed. Documentation or certification of such elevations will be maintained by the Town Clerk. Give such other information as reasonably may be required by the applicant. Section 5 - The Building Official shall review all develoument permit ap- plications to determine if the site of the proposed development is reasonably safe from flooding and that all neccessary p~rmits have been received as required by Federal or State Law. Section 6 - The Building Official, in reviewing all applications for new construction, substantial improvements, lYrefabricated buildings, placement of mobile homes and other development (s) (as defined in Section II of this 0rdinauce) will: a. Obtain review and reasonably utilize, if available, any regulatory flood elevation data from Federal, State or other sources, until such other data is provided by the Federal Insurance A~m~istration in a Flood Insurance Study~ and require within areas designated as Zone A on the official map that the following performance standards be met: (1) The first-floor elevation (to include basement) of new residential structures, be elevated to or above the regulatory flood elevation. (2) The first-floor elevation (to include basement of non-residential structures) be elevated or floodproofed to or above the regulatory flood elevation. b. Require the use of construction materials and utility equipment that a~e resistantic flood damage. c. Require the use of construction methods and practices that will minimize flood damage. d. Be designed or anchored to prevent the flotation, collapse or lateral movement of the structure or portions of the structure due to flooding. e. Assure that in regard to mobile homes, specific anchoring require- ments are: Over-the-top ties be provided at each of the four corners of the mobile home wiih two additional ties per side at the intermediate locations and mobile homes less than 50 feet long requiring one additional tie per side. (2) Frame ties be provided at each corner of the home with five additional ties per side at intermediate points and mobile homes less than 50 feet long requiring four additional ties per side. (3) All components of the anchoring system be capable of carrying a force of 4800 pounds. (4) Any additions to mobile homes be similarly anchored. Sections ? - The Governing Body of the Town shall review all subdivision applications and shall make findings of fact and assure that: a. All such proposed developments are consistent with the need to minimize flood damage. b. SuBdivision proposals and other proposed new development greater than five (5) acres or fifty (50) lots, whichever is lesser, include within such proposals regulatory flood elevation data in areas designated Zone A. c. Adequate drainage is provided so as to reduce exposure to flood hazards. d. All public utilities and facilities are located so as to minimize or eliminate flood damage. Section 8 - New Water and Sewer, etc, - New and replacement water and sewer systems shall be constructed to eliminate or mi~mlze infiltration by, or discharge into floodwaters. Moreover, on-site waste disposal systems will be designed to avoid impairment or contamination during flooding. Sect~ou 9 - The Goverm~g Body of the Town will insure that the flood car- rying capacity within the altered or relocated portion of any watercourse is maintained. The Town will noti_*y, in riverine situations, adjacent com- munities and the State Coordinating Office prior to any alteration or re- location of a watercourse, and submit copies of such notifications to the Administrator. Moreover, the Town will work with appropriate State and Federal agencies in every way possible in complying with the National Flood Insurance Program in accordance with the National Flood Disaster Protection Act of 1973. Section 10 - This Ordinsmce shall take precedence over cor~elicting Ordinances or parts of Ordinances, The Tow~Council of the Town of Uaranamay, from time to time, amend this Ordinance to reflect any and all changes in the National Flood Disaster Protection Act of 1973. The regulations of this Ordinance are in compliance with the National Flood Insurance Program Regulation as pub- lished in the Federal Register, Volume 41, Number 207, dated October 26, 1976. Section ll - Definition: Unless specifically defined below~ words or phrases used in this Ordin~uce shall be interpreted so as to give them the seine meaning as they have in common usage and so as to give this Ordinance its most rea- sonable application. AREAS OF SPECY_&L FLOOD HAZARD The land within a community subject to a one percent or greater chance of flooding in ~ giYen year. This land is identified as Zone A on the official map. DEVELOPMENT Any man-mede change to improved or unimproved real estate, including but not 1.~m~ted to buildings or other structures, mining, dredging filling, grading, paving, excavation or drilling operations. FLOOD A temporary rise in stream's flow or stage that results in water overflowing its bsm~ks and inundating areas adjacent to the channel or an unusual and rapid accumulation of runoff or surface waters from ~ So11~ce. FLOODPROOFING Auy combination of structural and non-structural additions, chan~es, or adjustments to structures, including utility and sanitary facilities, which would preclude the entry of water. Structural components shall have the capability of resisting hydrostatic and hydrodyn~m~c loads and the effec~ of buoyancy. HABITABLE FLOOR ~ny floor used for living which includes working, sleeping, eating, cooking or recreation or combination thereof. A floor used only for storage purposes is not a '~abitable floor". ~OB ILE HOME A structure, transportable in one or more sections, which is built on a permsment chassis and designed to be used with or without a permanent foundation when co~uected to the required utilities. It does not include recreational vehicles or travel trailers. MOBILE HOME PARK (SOBDIVISION) "Mobile Home Subdivision" means a parcel (or contiguous parcels) of land which has been divided into two or more lots for rent or sale and the placement of mobile homes. REGULATORY FLOOD ELEVATION - The water surface elevation of the 100 year-flood. A $alled and roofed structure, in- eluding a gas or liquid storage tauk that is principally above the ground, including but without limitation to buildings, factories, sheds, cabins, mobile homes and other s~m{lar uses. "Substantial improvement means any re- pair, reconstruction or im~0rovement of a structttre, the cost of which equals or exceeds 50 percent of the market value of the structure either (a) be- fore the i~provement is started, or (b) if the structure has been damaged and is being restored before the damage occurred. For the purposes of this definition "substantial improvement" is considered to occur when the first alteration of any wall, ceiling, floor or other structural part of the building commences whether or not that alteration affects the external dimensions of the structure. The term does not, however, include any alteration to comply with existing State or local health, sanitary, building or safety codes or regulations as well as structures listed in National or State Registers of historic places. 100-YEAR FLOOD - The condition of flooding having a one percent chance of annual occurrence. ADOPTED AND PASSED by the Town Council of the Town of Marana this /~- day of ~ ~ /~ ATTEST: